Corner formation in metal-sheathed construction material



y G. R. MEYERcoRn i CORNER FORMATION IN METAL SHEATHED CONSTRUCTION MATERIAL med o'ct. 1 9. 1925 Param-.a May 31, 19274.

UNITED. STATES PATENT?, OFFICE. i

GEORGE RUDOLPH MEYERCORD, OF CHICAGO, ILLINOIS, ASIGNOR TO HASKELITE 'l MANUFACTURING CORPORATION, A CORPORATION OF NEW YORK.

CORNER FORMATION IN METAII-SIBEEATHEIJv CONSTRUCTION MATERIAL.

Application nled October 19, 1925. Serial No. 63,459.

A type of construction material that is being largely used manufacture of things whose exposed faces are desirably made o metal, but -whose weight must be less than 1t 5 would be if metal alone were used, is one consisting of a supporting body or panel sheathed on at least one side or face with comparatively thin sheet metal. The body or backing may either be plywood,' fibre board, or any suitable composition. Material of this kind has heretofore been fabricated `so as to form walls arranged at an angle to each other, the metal sheathing ex- A vber need not extend 'entirely through the tending continuously from one wall to the other past a shar corner.

The object o the present invention is to produce a simple and novel construction and arrangement which will permit the formation of such a corner in a rounded shape,

.V of any desired radius, or in the shape o-f a plurality of sides of a polygon.

The various features of novelty whereby my invention is characterized will hereinafter be pointed out with particu'larity in the 25 claims; but, for a full understanding of my l invention and of its objects and advantages,

reference may be had to the following detailed description taken in connection lwith th(` accompanying drawing, wherein:

sheathed board fabricated and bent to form a corner in accordance with the present i'nvention; Fig. 2 is a view similar to Fig. 1, showing a modification; Fig. 3 is a section through the board of Igig. 2, its flattened condition; and Fig.v 4 is a viewsimilar to Figs. 1 and 2 showing a further modification. Referring to Figure 1 of the drawing, 1 40 represents the body of a board or panel of any usual or Suitable material which, inthe arrangement shown, is plywood. This board is sheathedA on one face with a thin sheet metal 2 cemented thereto.

In order to bend the board so'as to produce a rounded corner, with the metal sheathing intact, I rst make a post or filling piece 3 in the form'of a sector of a'cylinder having a radius corresponding to that of the corner to be produced, and an angular width or thickness corresponding to the angle at which the two sections of the .board are to lie relatively to leach other. A strip ofthe body member-.of the board as peripheral width of thepost or filling piece- 'made of three thin layers o igure 1 is a section. through ay metall bending Operation. T

wide as the is cut out of the body portion of the panel,

throughout the length ofthe latter, to expose the metal.` Suitable adhesive material is' then applied to the filling piecev or to the panel, or both, and the panel is bent around the filling piece, the shape of the corner being determined by the curved face of the 'filling piece. There may also be adhesive between the filling piece and the cut edges of the body member of the panel. If desired, the excision in the body memsame. Thus, in Fig. 4, I have illustrated a constructlon in which thev bod ty wood, that layer 4 next to the metal being left uncut.

`The fil/ling. piece or post 5 is similar to the correspondmg element heretofore described,

but is of course smaller.

If desired, the panel may be left with its original thickness throughout the bend. In suchcase, it will be necessary to cut parallel grooves into or through the body member, throughoutv that portion that is to be bent,

these grooves being closed bythe actvof bendvlng. Fig. 2 shows a corner made in this way,

and Fig. 3 shows the anel prepared for the stead of being a unifdrm curve, comprises a plurality of consecutive narrow fiat faces, 6, 7 and 8. This configuration is produced yby cutting wedge shaped grooves through the body member of the panel, as indicated at 9,

10, 11 and 12 in Fig. 3,'along'lines that define the margins of the :fiat faces 6, 7 andj 8 when the panel is bent. In this form of myv invention the filling piece or post 14 is glued isgainst the inner face of the panel at the end; '1

It will thus be seen thatl have devised av simple and novel method of forming a corner' o-f any desired configuration, to two walls at anv angle with each other and composed of.

a single panel bent into shape and having a continuous outer facing of metal.

While I have illustrated and described with particularityonly a single preferred form of my invention, with a few modifications, I do not desire to be limited-to" the -eXact structural details thus illustrated and described; butintend to cover all forms and member is' e corner in Fig. 2, in-

arrangements Whichcome within the denitions of my invention constituting the appended claims.

cla-im: A L A structure made of a single panei in the form of a .metal-sheathed board having the two ends lying at an angle to each other,

comprising such a boardI having a sufcient portion of the body cut away to permit the bending of the .board on a gradual curve lwith the metal-sheathing facing outwardly,- and a lling piece glued to the board within the angle formed between the two ends.

2. A structure comprising a, metal-sheathed board bent to bring the pars izhereof into vtwo planes :it an angle to each other with the metal facing outwardly, the body of the board being cut away to the metaifsheahing g across e `width sucient to permit a, strip of metal-sheathing thus exposed to be bent face of said strip of metal-sheathing and the bounding edges of the body portion of the board. ,l

In testimony whereof7 I sign this specication l GERGE R. MEYERCORD. 

